Two Australian divers holed up in Mexico have been ordered home by the New South Wales Institute of Sport (NSWIS) over concerns about swine flu.

Olympic gold medallist Matthew Mitcham and his Beijing teammate, Alexandra Croak, competed at a FINA World Diving series diving event in Mexico city on the weekend.

The diving team is now at a training camp in Veracruz, a coastal town 400 kilometres west of Mexico City.

New South Wales sports officials are trying to arrange for the team to leave Mexico on Thursday.

But Mitcham says he is worried about being confined in a flight where infected people might be on board.

"I am more concerned boarding a plane than I am staying here - being in a confined space with people who could be sick," he said.

"NSWIS is looking at flights that don't go through Mexico City so that maybe go through Houston or Dallas or somewhere like that, because Mexico City is the main source of the problem - where there are the most infections.

"We arrived in Mexico two and a bit weeks ago for the last leg of the FINA World Series diving event. We trained all week and we were supposed to compete on Friday and Saturday, which we did do.

"A couple of days after we got there, we heard about this swine flu outbreak and we didn't know how serious it was.

"I mean we had heard a couple of figures and so we were a little bit concerned but we thought that maybe we were a little bit isolated from it. Then it got to the first day of competition and they ended up evacuating all the spectators out of the pool to keep us safe."

Mitcham and his team-mate ended up diving to an empty stadium.

"We had spectators for the preliminaries and then when it got to the Opening Ceremony in the afternoon, where the finals normally take place after that, they ended up not doing the Opening Ceremony at all and ushering all the spectators out," Mitcham said.

"[We were worried] a little bit but they said that [they were] removing all the people from the stands, it minimised the chance of spreading the infection. So, I mean, we were a little bit consoled by that idea."

Mitcham says precautions were taken amid the flu threat.

"They gave us face masks. There were people around the pool wearing face masks," he said.

"They told us to wear face masks whenever we went into public areas. You know, if we went to the markets or a shopping centre, we wore them, definitely.

"Haven't seen anyone coughing or sneezing or anything like that. There is not very many masks where we are in Veracruz but when we were in Mexico City, there were lots of people wearing masks and taking precautions.

"There have been no reported cases of it here in Veracruz so we feel quite safe."

Now that the NSWIS has arranged for the two divers to return to Australia, he says they are training until they get more definite instructions.

In the meantime, Mitcham says they are considering getting Tamiflu or other drugs.

"NSWIS was going to send us all health kits like with vitamin C and boxes of Tamiflu and stuff but I think, instead, they are just considering bringing us home," he said.

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